ZdcUnpacker_impl Namespace Reference

Functions
template<class DigiClass >
const unsigned short *	unpack_compact (const unsigned short *startPoint, const unsigned short *limit, DigiClass &digi, int presamples, const HcalElectronicsId &eid, int startSample, int endSample, int expectedTime, const HcalHTRData &hhd)

Function Documentation

template<class DigiClass >

const unsigned short* ZdcUnpacker_impl::unpack_compact	(	const unsigned short *	startPoint,
		const unsigned short *	limit,
		DigiClass &	digi,
		int	presamples,
		const HcalElectronicsId &	eid,
		int	startSample,
		int	endSample,
		int	expectedTime,
		const HcalHTRData &	hhd
	)

Definition at line 18 of file ZdcUnpacker.cc.

References HcalHTRData::getFibOrbMsgBCN(), HcalHTRData::is_channel_header(), HcalHTRData::isUnsuppressed(), MessageLogger_cff::limit, compare_using_db::sample, HcalHTRData::unpack_per_channel_header(), HcalHTRData::wasMarkAndPassZS(), and HcalHTRData::zsBunchMask().

                                                               {
    // set parameters
    digi.setPresamples(presamples);
    digi.setReadoutIds(eid);
    int flavor, error_flags, capid0, channelid;

    HcalHTRData::unpack_per_channel_header(*startPoint, flavor, error_flags, capid0, channelid);
    bool isCapRotating = !(error_flags & 0x1);
    bool fiberErr = (error_flags & 0x2);
    bool dataValid = !(error_flags & 0x2);
    int fiberchan = channelid & 0x3;
    int fiber = ((channelid >> 2) & 0x7) + 1;

    uint32_t zsmask = hhd.zsBunchMask() >> startSample;
    digi.setZSInfo(hhd.isUnsuppressed(), hhd.wasMarkAndPassZS(fiber, fiberchan), zsmask);

    if (expectedTime >= 0 && !hhd.isUnsuppressed()) {
      digi.setFiberIdleOffset(hhd.getFibOrbMsgBCN(fiber) - expectedTime);
    }

    // what is my sample number?
    int ncurr = 0, ntaken = 0;
    const unsigned short* qie_work = startPoint;
    // we branch here between normal (flavor=5) and error mode (flavor=6)
    if (flavor == 5) {
      for (qie_work++; qie_work != limit && !HcalHTRData::is_channel_header(*qie_work); qie_work++) {
        int capidn = (isCapRotating) ? ((capid0 + ncurr) % 4) : (capid0);
        int capidn1 = (isCapRotating) ? ((capid0 + ncurr + 1) % 4) : (capid0);
        // two samples in one...
        HcalQIESample s0((*qie_work) & 0x7F, capidn, fiber, fiberchan, dataValid, fiberErr);
        HcalQIESample s1(((*qie_work) >> 8) & 0x7F, capidn1, fiber, fiberchan, dataValid, fiberErr);

        if (ncurr >= startSample && ncurr <= endSample) {
          digi.setSample(ntaken, s0);
          ++ntaken;
        }
        ncurr++;
        if (ncurr >= startSample && ncurr <= endSample) {
          digi.setSample(ntaken, s1);
          ++ntaken;
        }
        ncurr++;
      }
      digi.setSize(ntaken);
    } else if (flavor == 6) {
      for (qie_work++; qie_work != limit && !HcalHTRData::is_channel_header(*qie_work); qie_work++) {
        if (ncurr >= startSample && ncurr <= endSample) {
          HcalQIESample sample((*qie_work) & 0x7F,
                               ((*qie_work) >> 8) & 0x3,
                               fiber,
                               fiberchan,
                               ((*qie_work) >> 10) & 0x1,
                               ((*qie_work) >> 11) & 0x1);
          digi.setSample(ntaken, sample);
          ++ntaken;
        }
        ncurr++;
      }
      digi.setSize(ntaken);
    } else {
      edm::LogWarning("Bad Data") << "Invalid flavor " << flavor;
      qie_work = limit;
    }
    return qie_work;
  }